Coming to iOS11 is a neat feature called Emergency SOS. It is found in its own sub-menu under Settings. Basically, this feature lets you quickly call Emergency Services or your Emergency Contacts. You invoke it by pressing the sleep/wake (power button) rapidly 5x. Don't forget to fill in your Medical ID & Emergency Contact/s (in Health app) so those first responders (police, fire, medics, etc) have some basic information to work with. As an added bonus, invoking the Emergency SOS screen also disables Touch ID temporarily and the device will remain locked until you input your password. Useful if you are confronted by a bad guy (bad cops?). Make sure you have a strong password (an alphanumeric password is better than a simple 4 digit pin), set your phone to lock immediately, and Erase data after 10 failed password attempts as well.
Tech Loving, Trance Listening, Dimsum Eating, Coffee Drinking, Jedi in Training -- also a curmudgeon who tweets a lot.